The coefficient of coupling for tow coils having L1 = 2 H, L2=8H ,M= 3H is :
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Q: Example 32.19. The following data refer to a l-phase transformer : Turn ratio 19.5 1; R,= 252; X, =…
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Q: 2.14 The resistances and leakage reactances of a 40-kVA 60-Hz 7.97-kV-V:240-V single-phase…
A: Dear student kindly resubmit question for remaining part.Thank you! 2.14 The resistance and leakage…
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Q: Q1) A 20KVA , 2000/200 V single phase ,50 Hz transformer has a primary resistance of 2.5 0 and…
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Q: A12kVA, 2000/250V single-phase transformer has r₁= 502, x₁ =1002; r2 = 0.202 and X₂ 0.42. the…
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Q: A 120 kVA, 1350/330 V single phase transformer has the following parameters: R1 = 0.34 Q, X1 = 0.59…
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Q: Q4. A 200KVA single phase transformer with a voltage ratio 6350/660 V has the following winding…
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A: Dear student as per our guidelines we are supposed to solve only one question in which it should…
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- 6. A 25 kVA, 2300/230 V, single phase transformer has the following parameters: R1 = 0.8 Ω, X1 = 3.2 Ω, R2 = 0.009 Ω, X2 = 0.03 Ω. Solve for (a) equivalent value of resistance, reactance and impedance in secondary terms, (b) voltage regulation at 0.9 lagging pf and (c) voltage regulation for a leading pf of 0.866. Subject: Electrical Apparatus and DevicesA 4 kVA, 400/200 V single-phase transformer has resistance of 0.02 p.u. and reactance of 0.06 p.u. Its actual resistance and reactance refferd to h.v. side are ?A single phase transformer has arated secondary voltage of (230v).when Loaded by a purely inductive load to its rated Value of current ,its terminal voltage drops to (200 v). Calculate its regulation and efficiency.
- 2) A 20 KVA, 2400/240 V, 60 Hz transformer, to Determine the equivalent circuit impedances. The data obtained from The open circuit and short circuit tests carried out on the primary side of the transformer are the following: Open circuit test VCA = 2400 V ICA = 0.20 A PCA = 50 W Short circuit test Vcc = 50 V Icc = 8.33 A PCC = 230 W a) Determine the equivalent circuit parameters of the transformer referred to the high voltage side. b) Find the transformer voltage regulation for conditions Nominal and F.P. 0.9 in delay.A 10kVA, 500/250V, 50Hz single-phase transformer has a net cross-sectional area of 90cm2and maximum flux density of 1.2T. Calculate the number of turns on both the primary and secondary.We have 3 Phase, 24 Slot, 6 Pole Double Layer Winding. Solve then construct its Winding Diagram.
- A short-circuit test was performed on a 10kVA, 2000/400 V single phase transformer. The instruments indicated 100V, 5A and 100 W. Determine the secondary voltage when operating at rated load at 80% pf lagging at rated primary voltage. Provide values in order the space provided below: Re, Xe, I1, I2, and E1, E2A 480V/240V, 60Hz single transformer has Z1 = 0.1+j0.22 ohms and Z2 = 0.035 + j0.12 ohm. Find the equivalent impedance in ohm referred to the Primary Group of answer choices 0.24+j0.62 0.14+j0.62 0.24+j0.7 0.14+j0.7Q4-A single-phase, 10-kVA, 440/110-V, two- winding transformer is connected as an autotransformer to supply a load at 550 V from a 440 V supply as shown below. Calculate the following. 1. kVA rating as an autotransformer 2. apparent power transferred by conduction 3. apparent power transferred by electromagnetic induction
- uA 200 KVA, 350V/ 11 KV, 1-phase transformer has a full-load copper loss of 600 W and an iron loss of 350W. The primary winding contains 120 turns. Calculate the following: ui) Total full-load losses uii) Full load output power at 0.75 power factor uiii) ¼ th of full- load copper loss uiv) Efficiency at full-load when PF is 0.75 uv) Efficiency at ¼ th full load when PF is 0.75A.1. A gas likely to be used in an inert-gas system of a power transformer isA. oxygen.B. hydrogen.C. air.D. nitrogen.A.2. In the design of transformer windings, creepage between conductors and core yokes is prevented byproviding,A. keep-back distance.B. vertical oil ducts.C. separation sticks.D. bushing terminals.Referring to the figure below. assume a 6V battery having a negligible resistance. to be connected in series between the terminal of the dc generator having an internal resistance of 0.15 Ohm 10 charge two batteries A and B in parallel. If the internal resistances of batteries are 0.5 Ohm and 0.25 ohm respectively. determine the charging current through battery A using a.) Kirchhoff's Law. b.) Mesh Analysis, c.) Nodal Analysis, d.) Superposition Method, e.) Source Transformation Method f.) Thevinin's Theorem, g.) Norton's Theorem and h.)Millman's Theorem.
